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To mitigate performance anomalies due to different transmission rates and improve throughput performance in ad-hoc networks, we propose a method called user cooperative mobility in which a node, i.e., a user of an ad-hoc network, moves (changes its geometrical position) for communication. Unlike previous research regarding user cooperative mobility, it is not easy to decide to where the user should...
Recent years have shown an increase demand for wireless communication which creates new challenges in the field where intelligent spectrum utilization is necessary to maintain high network performance. The emergence of Cognitive Radios which provide opportunistic access to the spectrum, introduce an improvement in the spectrum utilization and the communication quality. Through dynamic spectrum access...
More and more study and application of ubiquitous healthcare system have been based on WBN (wireless body area networks). However, there are several important aspects that should be considered, such as the large amount sensing data, limited mobile terminal power supply, wireless bandwidth for video data flow. In ubiquitous healthcare networks, some personal health-care data are very important, such...
Nowadays, the demands for composite services with devices such as sensors/actuators and Web services have increased [1]. Many kinds of cloud services that can connect to real world, as typified by image recognition or speech recognition has come into widespread use to address the limitation in information processing on devices. In that situation, sensors are also provided as sensor services that senses...
In real-time multicast, delay and inter-destination delay variation of group members are bounded above by a value. The problem is known as Delay and Delay Variation Bounded Multicast Tree (DVBMT), which is proven to be NP-complete. In this paper, we propose a directional approach (DCS) for core selection and tree generation satisfying delay and inter-destination delay variation constraints. After...
In this paper, we present a user-centered approach, which ensures dynamic service discovery and composition. Besides, our proposed framework integrates self-adaptive mechanisms to adjust the service's execution to the user's context and the notion of the QoS in order to build a composite service or find services that fit a best. Additionally, our framework permits the re-composition of the composite...
Nowadays, composite service has led to a new challenge as there are various kinds of users and an increasing number of similar Web services. This challenge is to pick out the most appropriate composition for user requester. However, a composite service is determined by the quality of the involved Web services and some user preferences. Consequently, the best composition optimizes the QoS (Quality...
The Internet has evolved greatly in this decade. For economic benefits, the management of Internet networks needs to adapt to mass changes without huge modifications in hardware and software. Especially in campus networks, there are a variety of users and devices with different Quality of Service (QoS) requirements and management policies. Software-defined networking (SDN) decouples the data and control...
The Software-Defined Networking (SDN) paradigm has introduced a set of resources that can be employed to design new services and applications for the next generation of network technologies. Despite all the benefits provided by the SDN approach, the management of the infrastructure remains an unsolved challenge since it is necessary to provide the appropriate tools to ensure a reliable and effective...
When the Great East Japan Earthquake occurred in 2011, telephone and Internet could not be used in many cases. To achieve network availability in disaster situations, we propose the traffic control system based on SNS information. In order to utilize the data of packet payload obtained from SNS, deeply programmable network (DPN), which is extending SDN as implementing programmable data plane and API...
Satellite transmission based on IP may play important role for communication between event site and PPDR centers during large planned scenarios and disaster/unplanned ones. Geostationary SATCOM links that can be installed ad-hoc in any location present reliable and efficient way to transmit IP data even for voice communication based on VoIP. Using different mechanisms that handle multi connections...
Web service composition is aimed to compose new web service form to respond the goal of business process. The web service selection brings to consider accurate and reliability composition. Mostly a web service is exist tested quality of service (QoS) that is called non-functional testing described time, availability and cost. However, the web services composition need to meet the business requirement...
The problem arises when there is no tool that can help users to make best decision for choosing provider that meets user requirements satisfactorily. Available tools only compare the services of providers without considering user requirements. Thus the objective of this paper is to present a tool, called PTUR to meet the requirements and satisfaction of user from the selected providers that are ranked...
Service Composition is playing a pivotal role in diverse industries to approach more cost effective solutions in an efficient manner. Web service selection is playing a key role in the domain of the composition and it considers as the most important last informant of successful Automatic service composition. Since it is growing the web services in tremendous speed due to the innovation of cloud computing...
This paper presents a quality-of-service (QoS) based RFID system for smart assembly workshop towards the industrial Internet of Things (IoT). Under the context of the industrial IoT, every object in the assembly workshop is interconnected, which enables automated monitor of the production environment, track of the components/products/tools, and control of the machines and the execution process. The...
Web-based service-oriented grid computing refers to a distributed computing system comprising a collection of interconnected and virtual computers that provides web-based services via the Internet. These services are based on Service Level Agreements (SLAs) established by negotiation between service providers and consumers. SLAs are contractual obligations that define the mutually agreed understandings...
Service requirements documentation plays a crucial role on the quality of service-oriented systems to be developed. A large amount of service requirements are documented in the form of natural language, which are usually human-centric and therefore error-prone and inaccurate. In order to improve the quality of service requirements documents, we propose a service requirements modeling and validation...
In this position paper we identify the design of “wise systems” as an open research problem addressing new technology-based systems. Increasing complexity and sophistication make those systems hard to understand and to master. Human users are very often involved in learning processes that capture all their attention while being of little interest for them. To alleviate human interaction with such...
This paper proposes a technique to split a traffic in a software-defined network using a meter table. In general case, a different differentiated services code point (DSCP) number in a packet header is used to classify network traffic and provide quality of service (QoS). The traffic splitting technique uses a DSCP number as a split parameter. Once a packet exceeds a predefined traffic rate, the DSCP...
This track has made significant contribution to advance the current state of the art in enterprise distributed application management across data centers, and clouds public or private. The scale of distributed applications and their management have taken a new dimension demanding tolerance to wild fluctuations both in workloads and available computing resource pools. A new computing model proposing...
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